/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:47:51,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:47:51,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:47:51,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:47:51,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:47:51,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:47:51,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:47:51,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:47:51,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:47:51,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:47:51,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:47:51,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:47:51,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:47:51,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:47:51,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:47:51,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:47:51,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:47:51,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:47:51,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:47:51,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:47:51,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:47:51,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:47:51,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:47:51,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:47:51,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:47:51,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:47:51,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:47:51,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:47:51,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:47:51,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:47:51,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:47:51,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:47:51,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:47:51,258 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:47:51,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:47:51,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:47:51,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:47:51,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:47:51,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:47:51,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:47:51,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:47:51,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:47:51,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:47:51,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:47:51,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:47:51,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:47:51,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:47:51,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:47:51,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:47:51,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:47:51,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:47:51,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:47:51,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:47:51,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:47:51,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:47:51,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:47:51,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:47:51,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:47:51,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:47:51,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:47:51,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:47:51,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:47:51,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:47:51,615 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:47:51,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2020-07-19 21:47:51,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1398c3165/63ddd7effe33403db7ef9d00931a43ba/FLAGe69a38e08 [2020-07-19 21:47:52,178 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:47:52,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2020-07-19 21:47:52,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1398c3165/63ddd7effe33403db7ef9d00931a43ba/FLAGe69a38e08 [2020-07-19 21:47:52,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1398c3165/63ddd7effe33403db7ef9d00931a43ba [2020-07-19 21:47:52,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:47:52,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:47:52,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:47:52,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:47:52,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:47:52,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d01b85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52, skipping insertion in model container [2020-07-19 21:47:52,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:47:52,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:47:52,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:47:52,741 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:47:52,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:47:52,779 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:47:52,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52 WrapperNode [2020-07-19 21:47:52,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:47:52,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:47:52,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:47:52,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:47:52,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... [2020-07-19 21:47:52,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:47:52,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:47:52,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:47:52,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:47:52,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:47:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:47:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:47:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 21:47:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:47:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:47:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:47:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 21:47:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:47:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:47:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:47:53,154 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:47:53,155 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 21:47:53,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:47:53 BoogieIcfgContainer [2020-07-19 21:47:53,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:47:53,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:47:53,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:47:53,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:47:53,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:47:52" (1/3) ... [2020-07-19 21:47:53,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b15c171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:47:53, skipping insertion in model container [2020-07-19 21:47:53,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:47:52" (2/3) ... [2020-07-19 21:47:53,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b15c171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:47:53, skipping insertion in model container [2020-07-19 21:47:53,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:47:53" (3/3) ... [2020-07-19 21:47:53,168 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2020-07-19 21:47:53,178 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:47:53,186 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:47:53,201 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:47:53,226 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:47:53,227 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:47:53,227 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:47:53,227 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:47:53,227 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:47:53,228 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:47:53,228 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:47:53,228 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:47:53,247 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-19 21:47:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-19 21:47:53,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:53,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:53,253 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:53,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:53,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2020-07-19 21:47:53,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:53,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543974261] [2020-07-19 21:47:53,267 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@695ad521 [2020-07-19 21:47:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:47:53,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543974261] [2020-07-19 21:47:53,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:47:53,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-19 21:47:53,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435188106] [2020-07-19 21:47:53,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-19 21:47:53,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:47:53,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-19 21:47:53,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-19 21:47:53,387 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-07-19 21:47:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:47:53,411 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-07-19 21:47:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-19 21:47:53,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-19 21:47:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:47:53,421 INFO L225 Difference]: With dead ends: 31 [2020-07-19 21:47:53,421 INFO L226 Difference]: Without dead ends: 12 [2020-07-19 21:47:53,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-19 21:47:53,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-19 21:47:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-19 21:47:53,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-19 21:47:53,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-19 21:47:53,468 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-07-19 21:47:53,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:47:53,469 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-19 21:47:53,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-19 21:47:53,469 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-19 21:47:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-19 21:47:53,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:47:53,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:47:53,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:47:53,471 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:47:53,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:47:53,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2020-07-19 21:47:53,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:47:53,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107126496] [2020-07-19 21:47:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@695ad521 [2020-07-19 21:47:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:47:53,630 ERROR L253 erpolLogProxyWrapper]: Interpolant 5 not inductive [2020-07-19 21:47:53,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:47:53,637 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-19 21:47:53,643 INFO L168 Benchmark]: Toolchain (without parser) took 1106.98 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 146.2 MB in the end (delta: -44.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-07-19 21:47:53,646 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-19 21:47:53,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.33 ms. Allocated memory is still 136.8 MB. Free memory was 101.8 MB in the beginning and 92.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:47:53,651 INFO L168 Benchmark]: Boogie Preprocessor took 130.83 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 92.4 MB in the beginning and 181.5 MB in the end (delta: -89.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:47:53,653 INFO L168 Benchmark]: RCFGBuilder took 245.92 ms. Allocated memory is still 201.3 MB. Free memory was 181.5 MB in the beginning and 169.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:47:53,655 INFO L168 Benchmark]: TraceAbstraction took 480.48 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 146.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:47:53,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.33 ms. Allocated memory is still 136.8 MB. Free memory was 101.8 MB in the beginning and 92.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.83 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 92.4 MB in the beginning and 181.5 MB in the end (delta: -89.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 245.92 ms. Allocated memory is still 201.3 MB. Free memory was 181.5 MB in the beginning and 169.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 480.48 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 146.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...